Thanks for the bug report. It appears the blinking is compiz repeatedly
crashing in the Mesa radeon driver:
[ 2322.696000] compiz[18685]: segfault at 39 ip 00007f6398e0511b sp
00007ffcfb66d320 error 4 in r300_dri.so[7f639879d000+10ab000]
[ 2322.696026] Code: b6 40 2d eb ef 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa
31 f6 e9 95 a2 f9 ff 0f 1f 44 00 00 41 54 48 8d 15 97 b8 b2 00 55 53 <0f> b6 47
39 48 89 f3 48 63 04 82 48 01 d0 3e ff e0 0f 1f 40 00 bd
[ 2325.310971] compiz[18793]: segfault at 39 ip 00007f413ac7311b sp
00007fffd7f9e870 error 4 in r300_dri.so[7f413a60b000+10ab000]
[ 2325.310997] Code: b6 40 2d eb ef 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa
31 f6 e9 95 a2 f9 ff 0f 1f 44 00 00 41 54 48 8d 15 97 b8 b2 00 55 53 <0f> b6 47
39 48 89 f3 48 63 04 82 48 01 d0 3e ff e0 0f 1f 40 00 bd
[ 2327.567322] compiz[18833]: segfault at 39 ip 00007f969a22311b sp
00007fff2653c300 error 4 in r300_dri.so[7f9699bbb000+10ab000]
[ 2327.567347] Code: b6 40 2d eb ef 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa
31 f6 e9 95 a2 f9 ff 0f 1f 44 00 00 41 54 48 8d 15 97 b8 b2 00 55 53 <0f> b6 47
39 48 89 f3 48 63 04 82 48 01 d0 3e ff e0 0f 1f 40 00 bd
Please try using GNOME instead.
** Tags added: radeon
** Summary changed:
- Xorg freeze
+ [radeon] Blinking screen
** Package changed: xorg (Ubuntu) => compiz (Ubuntu)
** Also affects: mesa (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1961561
Title:
[radeon] Blinking screen
Status in compiz package in Ubuntu:
Incomplete
Status in mesa package in Ubuntu:
Incomplete
Bug description:
Binking screen with radeon after upgrade 18.04 to 20.04 - Console OK
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.13.0-30.33~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-30-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
Date: Mon Feb 21 10:13:34 2022
DistUpgraded: 2021-03-08 13:38:14,332 DEBUG package 'libcpanel-json-xs-perl'
produces an unwanted removal 'gnome-software-plugin-snap', skipping
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] RS482/RS485 [Radeon Xpress 1100/1150]
[1002:5974] (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company DC5750 Microtower [103c:280a]
Subsystem: Hewlett-Packard Company RS480 [Radeon Xpress 1150] (Secondary)
[103c:280b]
InstallationDate: Installed on 2015-11-26 (2278 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
MachineType: Hewlett-Packard HP Compaq dc5750 Small Form Factor
ProcEnviron:
TERM=linux
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=fr_FR.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-30-generic
root=UUID=681c938b-c95d-48de-886f-bc784bb57787 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to focal on 2021-03-08 (349 days ago)
dmi.bios.date: 01/25/2007
dmi.bios.release: 2.10
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 786E3 v02.10
dmi.board.name: 0A64h
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: CZC8061JND
dmi.chassis.type: 4
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr786E3v02.10:bd01/25/2007:br2.10:svnHewlett-Packard:pnHPCompaqdc5750SmallFormFactor:pvr:rvnHewlett-Packard:rn0A64h:rvr:cvnHewlett-Packard:ct4:cvr:skuEW318AV:
dmi.product.family: 103C_53307F
dmi.product.name: HP Compaq dc5750 Small Form Factor
dmi.product.sku: EW318AV
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.14.1+20.04.20200211-0ubuntu1
version.libdrm2: libdrm2 2.4.107-8ubuntu1~20.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.6-0ubuntu0.1~20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 21.2.6-0ubuntu0.1~20.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.6-1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
xserver.bootTime: Mon Feb 21 10:00:44 2022
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.20.13-1ubuntu1~20.04.2
xserver.video_driver: radeon
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